The V-LCD241MD-3G option includes the base unit with a pre-installed MD-3GE module providing an additional 3G/HD/SD-SDI input with loop-through. Marshall V-LCD241MD monitor provides excellent features in a 24-inch size. Straight-forward design with the most-used features built-in including waveform and audio bar overlays, loud speakers, programmable function buttons, three-color tally lights. Use on desktops or utilize a standard VESA mount.DSLR RATIO ADJUSTMENT: Marshall's new DSLR RATIO ADJUSTMENT feature allows users to scale video that does not completely fill the monitor's screen when connected via HDMI in "Record" mode on certain Canon DSLRs. This new feature allows the user to scale their DSLR video output, fill the screen, and eliminate black pillar bars with a variety of options to choose from. The user has the option of choosing between NORMAL, 3:2, 16:9, and FULL SCREEN. The DSLR RATIO ADJUSTMENT feature can be programmed to one of the front panel's four-button presets for quick and easy access.Waveform, Audio and Clip Guide displays: The new V-LCD71MD incorporates both a Waveform display and Stereo Audio bars. These may be displayed separately or together in any one of the four corners of the monitor. The Stereo Audio is de-embedded from either the HDMI input (8 channels) or from the optional 3GSDI input (16 channels). Any pair of the available channels may be selected for both the display and the Headphone Output.The Zebra function (Clip Guide) is used to visually filter data on the screen that is under a Lower Threshold or over an Upper Threshold. Data on either side of the filters can be displayed with a custom color.In the image above on the Right, the Lower Threshold has been set to 20 IRE (Red). This means that any part of the image UNDER 20 IRE will be "colored" in RED. Also, the Upper Threshold has been set to 90 IRE (Yellow). This means that any part of the image OVER 90 IRE will be "colored" in YELLOW.